real flash cards
(26 cards)
What is photosynthesis?
The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.
True or False: Photosynthesis occurs only in the presence of sunlight.
True
Fill in the blank: The primary pigment involved in photosynthesis is _____ .
chlorophyll
What are quadrats used for in ecological studies?
Quadrats are used to sample and study the distribution and abundance of organisms in a specific area.
Multiple Choice: What is the main purpose of using pitfall traps in ecology?
To capture small animals for the study of biodiversity.
What do pitfall traps typically consist of?
A container buried in the ground, with a rim at ground level to catch falling organisms.
True or False: Quadrats can be used to measure the density of plant species.
True
What is the role of light intensity in photosynthesis?
Light intensity affects the rate of photosynthesis; higher light intensity typically increases the rate.
Fill in the blank: The formula for photosynthesis can be summarized as _____ + _____ → glucose + oxygen.
carbon dioxide, water
Multiple Choice: Which of the following factors does NOT affect photosynthesis?
Soil pH
What is the significance of using a control in experiments involving photosynthesis?
To establish a baseline for comparison and ensure that results are due to the variable being tested.
True or False: Farming practices can influence the rates of photosynthesis in crops.
True
What is the effect of increased carbon dioxide levels on photosynthesis?
Increased carbon dioxide levels can enhance the rate of photosynthesis up to a certain point.
Fill in the blank: The study of populations within a quadrat is known as _____ analysis.
population
Multiple Choice: Which method is commonly used to estimate plant biomass in quadrats?
Dry weight measurement
What type of organisms are typically captured using pitfall traps?
Insects and small terrestrial animals.
True or False: The size of a quadrat can affect the reliability of ecological data collected.
True
What is the main advantage of using quadrats in ecological research?
They provide a systematic way to sample and analyze biodiversity.
Fill in the blank: The process of measuring the rate of photosynthesis can involve measuring _____ production.
oxygen
Multiple Choice: Which of the following is a common limitation of pitfall traps?
They can capture non-target species.
What is the importance of monitoring photosynthesis in agricultural practices?
To optimize crop yield and manage resources effectively.
True or False: Photosynthesis only occurs during the day.
True
What is the primary benefit of using ecological sampling methods like quadrats and pitfall traps?
To gather quantitative data on species distribution and abundance.
Fill in the blank: The main products of photosynthesis are _____ and _____ .
glucose, oxygen
